1140559 has 4 divisors (see below), whose sum is σ = 1303504. Its totient is φ = 977616.

The previous prime is 1140539. The next prime is 1140563. The reversal of 1140559 is 9550411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9550411 = 13 ⋅734647.

It is a cyclic number.

It is not a de Polignac number, because 1140559 - 2⁷ = 1140431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81462 + ... + 81475.

It is an arithmetic number, because the mean of its divisors is an integer number (325876).

2^1140559 is an apocalyptic number.

1140559 is a deficient number, since it is larger than the sum of its proper divisors (162945).

1140559 is an equidigital number, since it uses as much as digits as its factorization.

1140559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162944.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1140559 is about 1067.9695688548. The cubic root of 1140559 is about 104.4814646277.

The spelling of 1140559 in words is "one million, one hundred forty thousand, five hundred fifty-nine".